| 摘要 |
Disclosed is a network switching method. In the process of realizing circuit switched fallback, the switching from an LTE network to a 2G or 3G network is triggered, so that a UE can be directly switched to a CS domain of the 2G or 3G network from the LTE network. The network or the UE uses a session generated in the process of switching a called party to the CS domain of the 2G or 3G network from the LTE network, so that it is unnecessary to execute an ordinary called flow after switching to the 2G or 3G network from the LTE network, thereby shortening the duration for a user to wait for a voice session to be connected. |
